Gas and water meter.



A. G. SUTHERLAND.

GAS AND WATER METER;

APPLICATION FILED D30. 9, 190B.

2 SHEETS-SHEET 1.

Patented Aug. 10, 1909.

mnazw. B. GRAHAM 00., HIOTGLITMHRAPHRQ. WASHINGTON, c.

A. G. SUTHERLAND. GAS AND WATER METER. APPLICATION FILED DEC. 9, 1908. 930,435. Patented Aug. 10, 1909.

2 SHEETS-SHEET z.

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ANDREW. a. GRAHAM 00., Pnmu'moumvnzns. WASDHDIGYCN, 6 c.

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ANDREW GUTHRIE SUTHERLAND, OF ERDINGTON, ENGLAND.

, GAS AND WATER METER.

Specification of Letters Patent.

Patented. Aug. 10, 1909.

Application filed December 9, 1908. Serial No. 466,708.

' To all whom it may concern: I

Be it known that 1, ANDREW GUTHRIE SUTHERLAND, subject of Great Britain, residing at Bromford House, Erdington, in the county of Warwick, England, have invented new and useful Improvements Relatin to Gas and Water Meters, of which the foll owing is a specification. 7'

This invention relates to dry gas meters and also water meters and comprises the improvements hereinafter described whereby I am enabled to simplify the construction of such meters, and facilitate repairs.

Referring to the two accompanying sheets of explanatory drawings :Figure1 is a sectional front elevation, Fig. 2 a sectional plan taken just below the top of Fig. 1, and Fig. '3 a sectional elevation taken through the right hand end of Fig. 1 of a meter constructed in accordance with this invention.

The same reference letters in the different views indicate the same parts.

In carrying the invention into effect I adopt a circular form of body, the lower part a of which serves as a measuring compartment and the u per part b as a compartment for the controlling and registering mechanism. The two compartments are divided by a partition or valve plate 0 whichcarries a rotary controlling valve (1 and has a number of passages 6 whereby the inlet and outlet pipes g and f are respectively put into communication with the aforesaid measuring compartment and either of a pair of dilatable chambers carried as hereinafter described by the said plate 6. The dilatable chambers are comprised by a cylindrical outer part or trunk h containing a central partition 1' and having secured to each outer edge by a wire ring or otherwise a flexible leather, india rubber or other impervious cover or diaphragm 1'. Connection betweeneach chamber and the appropriate passage on the valve plate aforesaid is efiected by a branch pi e k and union Z. By such connection the c ambers are also supported from the valve plate. Ordinary devices such as levers m connected to the vertical stems n transmit the motions of the diaphragms to the valve actuating mechanism and also the usual registering mechanism 0. The said devices are also supported on the valve plate or on the trunk h of the dilatable compartments. On disconnecting the joint ring if between the upper portion 1) and the lower portion or measuring compartment a of the meter, and separating the portions, the Whole of the interior mechanism in the compartment a comes away with the upper portion 6, thus renderin the said mechanism very conveniently available for inspection or repair.

The valve and its seating are suitably constructed to control the passage of gas or water from the valve chest p through the three measuring chambers (viz :-those with in the part It and that formed by the lower outer part a of the meter case) to the outlet pipef. To rotate the valve vertical stems g are employed in conjunction with suitable links 1' and levers 8 connected to the diaphragm actuated parts of the mechanism, the said stems 1 being cranked and connected to the upper and lower sides of the valve as shown.

In water meters, excessive outward movements of the diaphragms, under the action of excessive pressure in the inner measuring chambers may be prevented by suitable perforated metal guards or caps u Fig. 3.

Having thus described my invention what I claim and desire to secure by Letters Patent is 1. In gas and water meters, the combination with detachable body portions forming upper and lower compartments, of a partition plate separating the compartments and connected with the upper portion, a valve and valve chest mounted on the upper side of the partition plate, passages at the underside of the said plate, measuring chambers arranged in the lower compartment, branch. pipes and unions detachably connecting the said'chambers to the passages, flexible diaphragms in conjunction with the measuring chambers, means supported by the chambers and transmitting motion from the diaphragms to the valve,-and a joint detachably connecting together the upper and lower body portions, substantially as set forth.

2. In gas and water meters, the combination with detachable body portions forming upper and lower compartments, of a partition plate separating the compartments and connected with the upper portion, a valve and valve chest mounted on the upper side of the partition plate, passa es at the under side of the plate, a cylindrica trunk and a partition therein formin measuring chambers arranged in the Iower compartment, branch pipes and unions detachably connecting the measuring chambers to the said passages, flexible diaphragms in conjunction with the chambers, rods and levers supported by the measuring chambers and operated by the diaphragms, means for transmitting motion from the rods to the valve, and a joint ring detachably connecting together the upper and lower body portions, substantially as set forth.

3. In gas and water meters, the combination with detachable body portions forming upper and lower compartments, of a partition plate separating the compartments and connected with the upper portion, a valve and valve chest mounted on the upper side of the partition plate, passages at the underside of the plate, a cylindrical trunk and a partition therein forming measuring chambers arranged in the lower compartment,

I branch pipes and unions detachably connecting the measuring chambers to the said passages, flexible diaphragins in conjunction with the chambers, rods and levers supported by the measuring chambers and operated by the diaphragms, means for transmitting motion from the rods to the valve, a joint ring detachably connecting together the upper and lower body portions, and guards prevente ing excessive distention of. the diaphragnis, substantially as set fortl In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ANDREW GU'lIlRIE SU'llI ER LAND. 

